A22_am_04_16B03.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

Reference Solicitation No. W912EE-16-B-0003, FC/MR&T, Yazoo River Basin, Yalobusha River Watershed, Calhoun and Chickasaw Counties, MS, Mississippi Delta Headw aters Project, Riser Pipe Grade Control Structures, RP-10-03, scheduled to open on 21 June 2016 at 1400 hours. Referenced Solicitation is amended as follow s:

SEE CONTINUATION PAGE FOR SUMMARY OF CHANGES.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 9

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 13-Jun-2016

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912EE-16-B-0003

X 9B. DATED (SEE ITEM 11)

09-May-2016

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

13-Jun-2016

CODE

VICKSBURG CONTRACTING OFFICE

4155 CLAY ST

VICKSBURG MS 39183-3435

W912EE 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912EE-16-B-0003

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SUMMARY OF CHANGES

SPECIFICATIONS: Section 33 42 29.00 09 is revised and replaced.

Specifications revised by this amendment have the notation "Revised by Amendment 0004" at the bottom of the page. Text added by this amendment is shown as underlined. Text deleted by this amendment is shown as overstruck.

Atch Section 33 42 29.00 09, Pages 1 thru 7

SECTION TABLE OF CONTENTS

DIVISION 33 - UTILITIES

SECTION 33 42 29.00 09

CORRUGATED METAL PIPE

PART 1 GENERAL

1.1 REFERENCES

1.2 GENERAL

1.3 SUBMITTALS

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 Corrugated Metal Pipe

2.1.1.1 Pipe 30 Inches In Diameter Or Less

2.1.1.2 Pipe 36 Inches In Diameter Or Larger

2.1.1.3 Lifting Lugs

2.1.1.4 Pipe Gage

2.1.1.5 Handling Pipe

2.1.2 Riser

2.1.2.1 Anti-vortex Baffle

2.1.2.2 Accessories

2.1.2.3 Pipe Stub

2.1.3 Connecting Bands

2.1.3.1 Pipe All Sizes

2.1.3.2 Pipe 30 Inches Or Less

2.1.3.3 Tank Rods

2.1.3.4 Bands

2.1.4 Test Reports and Bills of Lading

2.1.5 Bituminous Coating

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Pipe

3.1.2 Pipe Stub

3.1.3 Connecting Bands

3.1.4 Welding

3.1.5 Touch-up

3.2 PIPE TRENCH EXCAVATION

3.2.1 General

3.2.2 Disposition of Materials

3.3 PLACING OF PIPES

3.4 BACKFILL FOR PIPES

-- End of Section Table of Contents --

SECTION 33 42 29.00 09 Page 1 Revised By Amendment 0004

SECTION 33 42 29.00 09

CORRUGATED METAL PIPE

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by basic designation only.

AMERICAN WELDING SOCIETY (AWS)

AWS D1.1/D1.1M (2006; Errata 2006) Structural Welding Code - Steel

ASTM INTERNATIONAL (ASTM)

ASTM A 123/A 123M (2002) Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A 762/A 762M (2000) Standard Specification for Corrugated Steel Pipe, Polymer Precoated for Sewers and Drains

ASTM A 849 (2000; R 2005) Standard Specification for Post-Applied Coatings, Pavings, and Linings for Corrugated Steel Sewer and Drainage Pipe

ASTM D 1056 (2007) Standard Specification for Flexible Cellular Materials - Sponge or Expanded Rubber

1.2 GENERAL

The Contractor shall verify all measurements and shall take all field measurements necessary before fabrication. Welding to or on corrugated metal pipe shall be in accordance with the applicable provisions of AWS D1.1/D1.1M, except that the limitations therein on types of base metal shall not apply where other types are specified or shown.

1.3 SUBMITTALS

Government approval is required for all submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-07 Certificates

Corrugated Steel Pipe; G

Submit Certificates of compliance attesting that the corrugated

SECTION 33 42 29.00 09 Page 2 steel pipe meets specification requirements shall be submitted.

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 Corrugated Metal Pipe

The pipe shall be corrugated steel pipe in accordance with ASTM A 760/A 760M, Type I, full circular cross-section, zinc coated, with helical corrugations and folded lock seams. The lock seams shall be welded at each end of the pipe section. Corrugations for 42 inch diameter pipe and smaller shall be 2-2/3 by 1/2-inch (nominal size). Corrugations for 48 inch diameter pipe and larger shall be either 2-2/3 by 1/2-inch (nominal size) or 3 by 1 inch (nominal size) or 5 by 1 inch (nominal size).

The pipe shall be corrugated steel pipe in accordance with ASTM A 760/A 760M, aluminum coated, Type I, full circular cross-section, with helical corrugations and folded lock seams. The lock seams shall be welded at each end of the pipe section. Corrugations for 42 inch diameter pipe and smaller shall be 2-2/3 by 1/2-inch (nominal size). Corrugations for 48 inch diameter pipe and larger shall be either 2-2/3 by 1/2-inch (nominal size) or 3 by 1 inch (nominal size) or 5 by 1 inch (nominal size). Pipe shall be fabricated from aluminum coated steel sheeting conforming to

ASTM A 929/A 929M.

The pipe shall be corrugated steel pipe in accordance with ASTM A 762/A 762M, fully polymer precoated, Grade 10/3 (Type B) coating on both sides, Type I, full circular cross-section, with helical corrugations and folded lock seams. The lock seams shall be welded at each end of the pipe section.

Corrugations for 42 inch diameter pipe and smaller shall be 2-2/3 by 1/2-inch (nominal size). Corrugations for 48 inch diameter pipe and larger shall be either 2-2/3 by 1/2-inch (nominal size) or 3 by 1 inch (nominal size) or 5 by 1 inch (nominal size).

2.1.1.1 Pipe 30 Inches In Diameter Or Less

Pipe 30 inches in diameter or less shall have the ends equipped with a minimum of four (4) rerolled annular corrugations when paragraph PIPE ALL SIZES connecting bands are used and a minimum of four (4) rerolled annular corrugations when paragraph PIPE 30 INCHES OR LESS connecting bands are used.

2.1.1.2 Pipe 36 Inches In Diameter Or Larger

Pipe 36 inches in diameter or larger shall have the ends equipped with a minimum of four (4) rerolled annular corrugations. The rerolled corrugations may be independent of the corrugation of the pipe body.

2.1.1.3 Lifting Lugs

All pipe 36 inches in diameter or larger shall be equipped with two (2) lifting lugs. These lugs shall be attached to the pipe by welding.

Welding shall be done by qualified welders and in accordance with Section 05 60 00.00 09 WELDING. All welds and exposed metal shall be repaired in accordance with paragraph TOUCH-UP.

SECTION 33 42 29.00 09 Page 3

2.1.1.4 Pipe Gage

The gage of the pipe shall be as specified below:

PIPE GAGE

Pipe Diameter 2 2/3 by 1/2 3 by 1 or 5 by 1 inch (Inches) Corrugations Corrugations

24 14 -- 30 14 -- 36 12 -- 42 12 -- 48 10 12 54 10 12 60 10 12 72 8 12

The Contractor may elect to furnish pipe section lengths in combinations that will reduce the number of connecting bands. Pipe section lengths shall be approved. The minimum length of any pipe section shall be 16 feet.

2.1.1.5 Handling Pipe

Handling pipe upon delivery shall conform to paragraph INSTALLATION, subparagraph PIPE.

2.1.2 Riser

The pipe shall be as specified in paragraph CORRUGATED METAL PIPE. The gage of the pipe shall be as specified in paragraph PIPE GAGE.

2.1.2.1 Anti-vortex Baffle

The corrugated metal anti-vortex baffle shall be constructed as indicated.

The anti-vortex baffle shall be 14 gage minimum thickness and shall be galvanized in accordance with ASTM A 123/A 123M and coated as required for corrugated steel pipe.

2.1.2.2 Accessories

Bolts, nuts, washers, structural steel shapes and accessories shall be galvanized in accordance with ASTM A 123/A 123M.

2.1.2.3 Pipe Stub

The corrugated metal pipe stub size and gage shall meet the requirements specified for corrugated metal pipe and as shown.

2.1.3 Connecting Bands

2.1.3.1 Pipe All Sizes

Alternate No. 1 connecting bands, as shown, may be used for any size pipe.

They shall have a minimum of nine (9) corrugations (2-2/3 by 1/2-inch corrugations) or seven (7) corrugations (3 by 1 inch and 5 by 1 inch corrugations) and a minimum circumferential lap of 6 inches. The band shall be rolled so that when it is placed on the pipe sections, the ends of

SECTION 33 42 29.00 09 Page 4 the pipe will fit flush. The binders for the connecting band shall consist of a minimum of six (6) rods and tank lugs in accordance with the details shown. A closed cell expanded rubber gasket shall be used with this type connecting band. The closed cell gasket shall be 12 inches wide, 3/8-inch thick, unstretched diameter 10 percent less than the normal pipe size and shall comply with ASTM D 1056, Grade SCE-43. The gasket shall be centered over the pipe joint under the connecting band.

2.1.3.2 Pipe 30 Inches Or Less

Alternate No. 2 connecting bands, as shown, may be used for connecting pipe 30 inches in diameter or less. This band shall consist of one continuous corrugation on each side to mesh with the second annular corrugation on the end of the pipe. A 3/4-inch O-ring gasket shall be installed in the first annular corrugation of the end of the pipe. A mastic shall be placed in the lap area of the band prior to tightening of the rods and bolts. The mastic shall be as recommended by the pipe manufacturer. A tank rod and lug shall be placed in the annular corrugation on the outside of the band in accordance with the details as shown.

2.1.3.3 Tank Rods

The tank rods shall be 7/16-inch in diameter and shall be equipped with 1/2-inch diameter rolled threads. The nuts used on the rods shall be 1/2-inch x 1-3/4 inch steel hexagon head coupling nuts galvanized and retapped 0.020-inch (1/32-inch maximum) oversized to remove excess galvanizing from threads. Tank rods, nuts and washers shall be galvanized in accordance with ASTM A 123/A 123M.

2.1.3.4 Bands

The bands shall have the same coating, depth of corrugation and gage as specified for the pipe.

2.1.4 Test Reports and Bills of Lading

Metallurgical test reports showing respective heat numbers and bills of lading shall be furnished for all pipe delivered to the job.

2.1.5 Bituminous Coating

The bituminous coating for pipe surfaces in contact with concrete shall meet the requirements of ASTM A 849.

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Pipe

When delivered to the jobsite, the pipe shall be unloaded from the truck in a manner that will ensure no damage to the coatings or bending of the pipe.

The pipe shall be unloaded by use of hoist, skids and snubbing ropes or other methods approved. Under no circumstances shall the pipe be allowed to drop from the truck or roll freely. Lifting of the pipe shall be done by use of slings or lifting lugs attached to the pipe. The use of hooks attached to the ends of the pipe will not be allowed. Two bituminous coatings shall be applied to that part of the corrugated metal pipe which is to be in contact with the concrete and is to be applied just prior to

SECTION 33 42 29.00 09 Page 5 placing of concrete.

3.1.2 Pipe Stub

The corrugated metal pipe stub shall be attached to the pipe riser by a continuous shop weld around the periphery of the pipe.

3.1.3 Connecting Bands

The connecting bands shall be installed as shown. The closed cell gasket shall be centered over the pipe joint under the connecting band.

3.1.4 Welding

Welding shall be done by qualified welders in accordance with Section

05 60 00.00 09 WELDING.

3.1.5 Touch-up

All welds and exposed metal shall be repaired in accordance with ASTM A 780 and painted with two coats of zinc dust primer as recommended by the pipe manufacturer and painted with two coats of an aluminum touch-up coating as recommended by the pipe manufacturerand repaired with a polymer touch-up coating similar and compatible with respect to durability, adhesion, thickness and appearance of the original polymer coating, and as recommended by the pipe manufacturer.

3.2 PIPE TRENCH EXCAVATION

3.2.1 General

The pipe trench excavation shall consist of removal of material in preparing the foundation to the lines and grades shown and specified. The surfaces upon which pipe is to be placed shall be accurately finished to the lines and grades required. All foundations shall be on solid, undisturbed or properly compacted material. When disturbed by the Contractor's operations, and elsewhere as required, the excavated surfaces shall be moistened with water if necessary and tamped or rolled with suitable tools or equipment for the purpose of thoroughly compacting them and forming firm foundations upon or against which to place the pipes.

Overexcavation will not be permitted except to remove unsuitable material as directed. If at any point in the excavation for pipes, material is excavated beyond the excavation lines shown, such unauthorized overexcavation shall be backfilled and compacted as specified for backfill in Section 31 23 03.00 09 EXCAVATION, BACKFILL, EMBANKMENT, AND CONTROL OF WATER, at no additional cost to the Government. If at any point in excavation the foundation material is found to be unsuitable, it shall be removed as directed and replaced with selected materials and compacted as specified above and an equitable adjustment in contract price and time will be made in accordance with Contract Clause CHANGES. All excavation and foundation preparation shall be performed in areas free of water. Where dimensions of pipe trenches are not shown, the bottom width shall be not less than 2 feet greater than the outside span dimension of the pipe.

Excavation for pipes shall fit the outside periphery of the bottom quadrant of the pipe. If required, cross-trenches shall be excavated to receive the hubs of pipe, and to prevent non-uniform load at joints.

SECTION 33 42 29.00 09 Page 6

3.2.2 Disposition of Materials

Excavated materials shall be disposed of in accordance with Section

31 23 03.00 09 EXCAVATION, BACKFILL, EMBANKMENT, AND CONTROL OF WATER.

3.3 PLACING OF PIPES

The connecting bands shall lap at equal portion on each pipe section jointed and shall be drawn tight to ensure that the corrugations fit snugly and provide a satisfactory joint. The pipe shall be placed with the pipe invert coinciding with the specified grade lines. Pipe shall be handled with care so that the coating will not be damaged. Proper facilities shall be provided for lowering the pipe into the trench. Damaged areas on connecting bands, pipes, and angles shall be repaired as specified in paragraph TOUCH-UP prior to placing backfill except that exposed metal in joints shall be coated prior to making joints.

3.4 BACKFILL FOR PIPES

Fill around the corrugated metal pipe shall be placed and compacted as specified for pipe fill in Section 31 23 03.00 09 EXCAVATION, BACKFILL, EMBANKMENT, AND CONTROL OF WATER.

-- End of Section --

SECTION 33 42 29.00 09 Page 7